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Commit 3a11a487 authored by Adam Gandelman's avatar Adam Gandelman Committed by Philipp Reisner
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drbd: New handler: initial-split-brain 



Some wish to be notified of all instances of split brain, not just those that
go unresolved.  The initial-split-brain handler is called to notify someone
upon  detection of all split brain conditions even if auto-recovery policies
are configured.

Signed-off-by: default avatarAdam Gandelman <adam.gandelman@linbit.com>
Signed-off-by: default avatarPhilipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: default avatarLars Ellenberg <lars.ellenberg@linbit.com>
parent 979f5c7f

drivers/block/drbd/drbd_receiver.c

+4 −1
Original line number Diff line number Diff line
@@ -2487,6 +2487,9 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol 
		     hg > 0 ? "source" : "target");

	}



	if (abs(hg) == 100)

		drbd_khelper(mdev, "initial-split-brain");



	if (hg == 100 || (hg == -100 && mdev->net_conf->always_asbp)) {

		int pcount = (mdev->state.role == R_PRIMARY)

			   + (peer_role == R_PRIMARY);
@@ -2532,7 +2535,7 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol 
		 * after an attempted attach on a diskless node.

		 * We just refuse to attach -- well, we drop the "connection"

		 * to that disk, in a way... */

		dev_alert(DEV, "Split-Brain detected, dropping connection!\n");

		dev_alert(DEV, "Split-Brain detected but unresolved, dropping connection!\n");

		drbd_khelper(mdev, "split-brain");

		return C_MASK;

	}